Patents by Inventor Tai H. Chung

Tai H. Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4227281
    Abstract: A caster pad permanently attachable to the underside of a receptacle to permit a caster to be quickly mounted to the receptacle by insertion into the caster pad and to be quickly removed from the receptacle by releasing it from the caster pad. In one embodiment, the caster pad employs no specialized parts but instead is formed from a single piece of sheet metal to which standard bolts are affixed for locking the caster into the caster pad. In addition to the bolts, the caster pad consists of a unitary piece of metal whose edges are bent out of the plane of its flat central portion to form flanges which help to retain the caster and which include threaded holes for attaching the bolts.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: October 14, 1980
    Assignee: P. J. Company
    Inventors: Tai H. Chung, Damong Lee